High-impact Activities Research Articles

Scoping Review of Pain and Patient Characteristics and Physical Function Associated with Intermittent and Constant Pain in People with Knee Osteoarthritis.

Purpose: We identified the pain and patient characteristics and physical function associated with intermittent and constant pain in people with knee osteoarthritis (OA). Method: The search strategy was conducted in MEDLINE, CINAHL, Embase, SPORTDiscus, Cochrane, and the Physiotherapy Evidence Database for articles published up to October 2018. We included observational studies, randomized controlled trials, reviews, qualitative studies, and case reports in English and French of adults with knee OA. Articles were screened by two independent reviewers, and disagreements were resolved by a third researcher. Results: Our search yielded 1,232 articles, and 4 articles were included in the review. Constant pain was related to limitations in daily activities, a higher Kellgren and Lawrence grade, a higher prevalence of comorbidities, and symptomatic knee OA and depressive symptoms. Intermittent pain was associated with limitations in high-impact activities, but greater time spent in moderate activities was reported. The evidence is contradictory as to whether intermittent or constant pain has a greater average severity. Conclusions: There was limited evidence available to determine the association of pain and patient characteristics and physical function with constant and intermittent pain in people with knee OA. Future research will help improve our understanding of these two pain patterns by examining their associations across a variety of pain and functional outcomes in people with knee OA.

Assessment of pelvic floor muscles in sportswomen: Quality of life and related factors

ObjectivesTo evaluate Maximum Voluntary Contraction (MVC) of the Pelvic Floor Muscles (PFM) in sportswomen, to observe the urinary symptoms and their impact on the Quality of Life (QoL). DesignObservational cross-sectional study. SettingGyms and teams in the North of Portugal. ParticipantsSportswomen (n = 197). Main outcome measuresThe measurement was performed using a manometer. The sportswomen were instructed to perform 3 MVC of the perineum, held for 3 s. The Kings Health Questionnaire (KHQ) was used to evaluate urinary symptoms and the QoL of the sportswomen. ResultsAge significantly influenced (p < 0.05) the QoL in all domains. An increase in BMI was also significantly associated with a decrease in the QoL. MVC values had a highly significant effect on the overall QoL and all domains, including a reduction in urinary symptoms. The weekly time of physical activity was associated with a better QoL in symptomatology. The practice of high-impact activities decreased the QoL (compared to low-impact activities). The vaginal resting pressure values ranged from 1.60 to 59.80 (24.34 ± 11.00). ConclusionsAge, BMI and high-impact sports appear to be the leading factors that promote the onset of SUI, which in turn decrease the QoL in sportswomen. There was a positive association between MVC and weekly time of physical activity in the QoL.

Platelet-Rich Plasma for Sport-Active Patients with Knee Osteoarthritis: Limited Return to Sport.

Objective To evaluate a cohort of sport-active patients suffering from cartilage degeneration and OA, in terms of clinical outcome and return to sport (RTS) after platelet-rich plasma (PRP) injective treatment. Design This study included forty-seven sport-active patients ≤50 years old with unilateral symptomatic knee cartilage degeneration or OA. Patients received 3 PRP injections and were prospectively evaluated at baseline and then at 2, 6, 12, and 24 months follow-up by IKDC subjective EQ-VAS, and Tegner scores. Furthermore, patients were asked about their RTS, in terms of return to any sport level or to their activity level before symptoms onset. Results IKDC subjective score improved significantly at all follow-ups, changing from 59.2 ± 13.6 to 70.6 ± 13 at 12 months and to 76.7 ± 12.5 at 24 months (p < 0.0005). A similar outcome was observed with the EQ-VAS score. Tegner score improved from 3.6 ± 1.4 to 4.8 ± 0.9 at 24 months (p < 0.0005). A similar outcome was observed with the EQ-VAS score. Tegner score improved from 3.6 ± 1.4 to 4.8 ± 0.9 at 24 months (p < 0.0005). A similar outcome was observed with the EQ-VAS score. Tegner score improved from 3.6 ± 1.4 to 4.8 ± 0.9 at 24 months (p < 0.0005). A similar outcome was observed with the EQ-VAS score. Tegner score improved from 3.6 ± 1.4 to 4.8 ± 0.9 at 24 months (Conclusions Sport-active patients affected by knee OA can benefit from PRP injections, with pain and function improvement over time. However, results are less satisfactory in terms of RTS since only half can achieve the same sport level as before the onset of symptoms. Patients undergoing PRP treatment should be made aware of their low chances to go back to high-impact sport activities.

Prevention of Stress Urinary Incontinence in Women

Lower urinary tract dysfunction (LUTD), including stress urinary incontinence (SUI), is increasingly recognized as a public health issue due to the prevalence, individual burden, and societal impact. Women are disproportionately affected by UI and are exposed to unique events that affect LUT function including higher rates of LUT infection, childbirth, pelvic floor anatomic changes, and hormonal milieu. The majority of LUTD research and clinical practice has focused on treatment of the most affected subset of women, but there are millions of women living with urinary incontinence that do not seek advice or treatment, and the evidence base for prevention or detection of early symptoms is lacking. Individual factors such as sociodemographic elements, medical history, physical exam, and comorbidities have been well studied; however, the contribution of family and environmental factors is less well understood. Emerging data suggests that some types of high-impact physical activity in adolescence can confer increased UI risk later in life. Prenatal and postpartum pelvic floor muscle training appears to be beneficial in preventing SUI in some women. While certain individual risk factors for SUI have been identified, sociocontextual factors also affect health outcomes and can mediate an individual’s risk of disease. The social ecological model considers factors within the family/peer, community, and societal levels that can affect an individual’s health behaviors. Prevention research that investigates these multiple levels of influence on individual biology and behavior is a fundamental step to better understand the complex factors that impact bladder health and inform LUTS prevention agendas. In addition, strategies to educate girls and women and engage communities in bladder health promotion are essential in order to effectively disseminate scientific findings and implement intervention programs.

Return to Weightbearing and High-Impact Activities Following Jones Fracture Intramedullary Screw Fixation.

Although the benefit of primary intramedullary (IM) screw fixation of fifth metatarsal Jones fractures in athletes is clear, limited data support its use in conventional patient populations. This study evaluated radiographic and functional outcomes following primary IM screw fixation in a series of Jones fractures to determine if similar excellent outcomes were achievable. We reviewed the data of 32 consecutive patients who underwent Jones fracture primary IM screw fixation by a single surgeon. Demographic risk factors of interest (age, gender, tobacco use, pertinent medical comorbidities, military service status, and prior nonoperative management) were collected prospectively. Primary outcomes included times to return to full weightbearing, radiographic union, and resumption of high-impact or restriction-free activities. Complications including reoperations were recorded. Categorical data are reported as frequencies, and statistical means with P values are reported for continuous variables. Mean age for the 32 patients was 33.4 years. All 32 fractures healed uneventfully, and at mean follow-up time of 24.2 months, overall patient-reported satisfaction was 100%. Overall mean postoperative outcomes are as follows: 3.7 weeks return to full weightbearing, 10.8 weeks to radiographic union, and 13.0 weeks to resumption of restriction-free activities. Among the risk factors assessed, only preoperative peripheral vascular disease (PVD) and/or diabetes mellitus (DM) and active duty military service resulted in significantly increased and decreased time to resumption of restriction-free activities, respectively, but did not impact overall weightbearing or union times. Patient age, gender, and tobacco use had no effects on radiographic or functional outcomes. Primary IM screw fixation was a safe, reliable option for all appropriate operative candidates with Jones fractures and may result in similar early weightbearing, osseous healing, and expeditious return to full activities consistently reported in high-level athletes. Level IV, case series.

Impulso de la Red de Divulgación de Ciencia, Tecnología e Innovación como organismo promotor de la sociedad del conocimiento en San Luis Potosí, México

La Red de Divulgación de Ciencia, Tecnología e Innovación (Rediciti) fue una estrategia que impulsó el Consejo Potosino de Ciencia y Tecnología (Copocyt) en el año 2010 con el objetivo de captar, profesionalizar e impulsar las acciones de divulgación científica en el estado. Esta comunidad de divulgadores ha permitido la atención de población de alta y muy alta marginación, permitiendo identificar necesidades educativas, sociales y tecnológicas en las cuatro regiones del estado. El modelo conceptual que se utilizó para el impulso de las actividades de la Red fue el de Jorge Padilla y Lourdes Patiño de la Sociedad Mexicana para la Divulgación de la Ciencia y la Técnica A.C. (Somedicyt), dando como resultado actividades de alto impacto.

Bone-Loading Physical Activity and Alcohol Intake but not BMI Affect Areal Bone Mineral Density in Young College-Aged Korean Women: A Cross-Sectional Study.

The purpose of this cross-sectional study was to determine the differences in areal bone mineral density (aBMD) based on alcohol consumption behaviors, bone-loading history as assessed by a bone-specific physical activity questionnaire (BPAQ), and the body mass index (BMI). College-aged female students (N = 112) were recruited from the universities in Seoul and Gyeonggi province, South Korea. The aBMD of the lumbar spine and non-dominant side of the proximal femur (total hip, TH; femoral neck, FN; femoral trochanter, FT) were measured using dual energy X-ray absorptiometry (DXA). Alcohol consumption was determined by the frequency and amount of alcohol intake during the past 12 months using a self-reported questionnaire. The X-scan plus II was used to measure height (cm), body mass (kg), fat-free mass (FFM, kg), and % body fat. Drinking two or more times alcohol per week was associated with greater aBMD of the TH (p = 0.04–0.002) and FN (p = 0.043) compared to a lower frequency of alcohol consumption and 2–4 times per month, respectively. Based on the drinking amount per occasion, there were no significant group differences (p > 0.05) in aBMD at any of the sites. The highest group of total BPAQ had greater aBMD of the TH, FN, and FT versus the lowest (p = 0.023–0.009) and mid of total BPAQ groups (p = 0.004–0.009). Additionally, the highest group had greater aBMD of the lumbar spine compared to the mid group (p = 0.001). No significant group differences in aBMD at any of the sites were noted based on the BMI (p > 0.05). Young college-aged women with greater bone-loading physical activity showed greater aBMD at the TH, FN, FT, and lumbar spine, while a moderate alcohol intake was associated with greater aBMD of the TH and FN. These findings have clinical implications for young women who may not participate in high-impact physical activity and are binge drinkers.

Return to Sport After Short-Stem Total Hip Arthroplasty.

Information about sport activity after short-stem total hip arthroplasty (THA) is scarce in the literature. We therefore aimed to evaluate the rate of return to sport after short-stem THA. We evaluated the sport pattern, rate of return to sport, activity level, extent of sport activity, and subjective rating and sense of well-being in 137 patients (137 hips) after short-stem THA. The minimum follow-up time was 18 months. All results were analyzed according to gender (male and female) and age (≤60, >60-≤70, and >70 years). Ninety-two percent of all patients practiced sport before surgery, and 91% of the patients returned to sport. Most patients returned to sport within the first 6 months after surgery. There was a decline in the number of sport disciplines from preoperatively to postoperatively, which was from 2.9 to 2.6 (P = 0.025). High-impact activities decreased postoperatively, but most low-impact activities did not change significantly. Eighty percent of all patients were involved in recreational sports. In this study, we observed an excellent rate of return to sport after short-stem THA. Most patients returned to the same level of sport activity that they had before the onset of restricting symptoms, with the majority of patients having a great sense of well-being during and after sports, and almost no pain in the affected hip.

Hip resurfacing arthroplasty and total hip arthroplasty in the same patient: which do they prefer?

Hip resurfacing arthroplasty (HRA) is an alternative to conventional total hip arthroplasty (THA) with potential advantages of preserving femoral bone stock and the ability to participate in higher impact activities. This study compares outcomes, satisfaction and preference in patients who underwent HRA in 1 hip and THA on the contralateral side. 62 Patients with an HRA in 1 hip and a contralateral THA were retrospectively identified at 3 centres, consisting of 38 males and 24 females with 53 patients (85.5%) undergoing HRA first. A survey regarding satisfaction and preference for each procedure and outcome scores were obtained. Patients were younger (51.5 vs. 56.6 years, p = 0.002) and had longer follow-up on the HRA hip (11.0 vs. 6.0 years, p < 0.001). HRA was associated with larger increase in Harris Hip Score from preoperative to final follow-up (35.8 vs. 30.6, p = 0.035). 18 Patients (29.0%) preferred HRA, 19 (30.6%) preferred THA and 25 (40.3%) had no preference (p = 0.844). When asked what they would choose if they could only have 1 surgery again, 41 (66.1%, p < 0.001) picked HRA. Overall satisfaction (p = 0.504), willingness to live with their HRA versus THA for the rest of their life (p = 0.295) and recommendation to others (p = 0.097) were similar. Although HRA is associated with risks related to metal-on-metal bearings, it showed greater increase in patient-reported outcomes and a small subjective preference amongst patients who have undergone both conventional and resurfacing arthroplasty.

STUDENT MOTIVATION FOR ELITES: A STEM Leadership Program

In this article we explore the level of motivation held by students engaged in a specially designed leadership program - Emerging Leaders in Technology, Science and Mathematics (Elites). Elites was developed as part of a NSF S-STEM grant awarded to Radford University in 2014 that provides scholarships for meritorious students with financial need, which aligns with Involvement Theory (Astin, 1985). Elites was designed to incentivize student participation in high impact activities to develop their professional skills aligned with their degree program, in order to develop them into STEM leaders. Coupled with Proactive Advising (Schee, 2007, Varney, 2012), the Elites program overarching goal was to promote retention of these students at Radford University and in their STEM related disciplines. This paper presents the successes and challenges of the Elites program as measured by focus group interviews and evaluating the students’ motivation levels to engage in the Elites program that is framed on an academic motivational model: M.U.S.I.C. (Jones, 2009). The results suggest students were motivated to remain with the Elites program and perceived the Elites program as effective as they prepared for their futures as STEM leaders.

Using the sediment fingerprinting method to identify the sediment sources in small catchments with similar geological conditions

Traditional fingerprinting methods discriminate sediment sources based on differences in the source geological conditions or land use types. However, whether this method is effective if both the geological conditions and land use types are similar and the circumstances under which the method can be used remain unclear. To further understand the scope of applying the fingerprint identification method, this study selected the Wangjiagou catchment, which consists of subcatchments A and B, as the target. In this catchment, corn (Zea mays L.) was the species with the highest proportion in the dry land. Furthermore, the geological conditions in the catchment are consistent and, the soil is Eutric Regosol developed from the purple rock strata of the Jurassic system. A total of 85 source samples were collected in subcatchments A and B, and 11 sediment samples were collected at the outlets of the each of the subcatchments in the rainy season (from June to October). This research analyzed 48 geochemical elements as the potential fingerprint factors. In this case, the optimum composite fingerprint consisted of five individual properties (Zn, Ce, La, Li and Eu) in subcatchment, whereas four geochemical properties (Mn, La, Ni and Lu) passed the stepwise discriminant function analysis in subcatchment B. These properties exhibited discriminative powers of 100% in the respective subcatchments. The research results indicated the following: first, the multivariate mixing model can provide the contribution rates of each sediment source; second, the goodness of fit (GOF) of this model was greater than 95% in both subcatchments; and third, the sediment uncertainty of each source was within 5% in both subcatchment A and B. These findings indicate that the fingerprinting method can be used in areas with small differences in land use and geological conditions. The results show that great focus needs to paid to soil erosion on slope land in subcatchment A and mulberry fields in subcatchment B. In this area, high-impact human activities (i.e., extensive channel excavation and highly intense machine cultivation) have negated certain soil and water conservation measures. Therefore, in order to reduce soil erosion and ensure that the existing soil and water conservation measures are effective, farmers should implement rational channel management and no tillage or minimal tillage practices. Furthermore, to improve the fertilizer utilization rate of agro-ecosystems, deep fertilizer application and straw return technology should be promoted.

Pelvic floor muscle displacement during jumps in continent and incontinent women: An exploratory study.

The prevalence of stress urinary incontinence during high-impact activities is high. Enhanced comprehension of pelvic floor muscle (PFM) displacement and activity is clinically relevant for the development of specific approaches in rehabilitation. The aim of the study is to investigate and to compare PFM displacement between the continent and incontinent women during jumps. A cross-sectional, exploratory design was applied to investigate PFM displacement during drop jumps (DJ) and countermovement jumps (CMJ). PFM displacement was assessed in craniocaudal translation and forward-backward rotation with an electromagnetic tracking system. Twenty-eight continent and 22 incontinent women were included. During the first landing of DJ, a primary caudal, during the second landing of DJ/CMJ a primary cranial translation and during all jump a primary backward rotation was observed. No significant difference between the groups was found. PFM displacement during running demonstrated caudal translation/forward rotation before and cranial translation/backward rotation after heel strike. During the second landing of DJ/CMJ a cranial translation/backward rotation and during the first landing of DJ a caudal translation/backward rotation has been observed after ground contact. This may be due to the longer lasting bodyweight force in the first landing of DJ. No eccentric-concentric stretch-shortening cycle could be seen. This study indicates that during jumps two opposite reactions of involuntary PFM displacement happen, but no stretch-shortening cycle with an eccentric-concentric contraction could be found. Jumping stimuli inducing involuntary PFM displacement should be used for future investigations to consider a beneficial effect concerning continence.

Assessment of the Development of Social and Learning Networks in Construction Management Courses Using Social Network Analysis

ABSTRACT Preparing Construction Management (CM) students for their professional lives must include not only training on technical skills, but also a variety of personal interaction skills, from working with diverse teams and solving complex problems to communicating with clients and other project stakeholders. This paper asks the question, “How can CM departments facilitate student learning and interactions that simultaneously develop technical, managerial, communication, and people skills?”. Across disciplines, universities have been encouraging curriculum innovation through High-Impact Learning Activities (HI-Activities) – including hands-on learning, problem-based learning, capstone courses, service-learning, and study abroad experiences – in an effort to develop students’ ability to apply knowledge and prepare them for their careers. The purpose of this research is to investigate the relationship between classroom teaching strategies in CM courses and the development of social and learning networks among students. The data include results from a social network survey of four courses to understand how using different HI-Activities in the classroom produced different social and learning networks. The results show that service-learning and study abroad classes are more effective than classes involving project-based learning and hands-on learning activities in developing communication and learning networks among CM students.

Prevalence of Ulnar Artery Thrombosis in Orthopedic Surgeons.

Ulnar artery thrombosis (UAT) occurs most commonly in athletes and manual laborers who repeatedly use their palm in high-impact activities. Anecdotal evidence has shown an increased prevalence of UAT in orthopedic surgeons, especially in joint arthroplasty surgeons, compared with the general population. This study sought to determine the prevalence of UAT among orthopedic surgeons and to identify risk factors for developing UAT. Eighty orthopedic surgeons and residents were included in the study. Participants completed a demographic questionnaire, and a timed Allen test was performed on each hand with the radial artery occluded. A reperfusion result greater than 6 seconds was considered abnormal. Participants with a positive Allen test and UAT-associated symptoms were deemed to have UAT. Statistical analysis was performed using the Fisher exact and Wilcox-on rank-sum tests. The prevalence of UAT was 11% (9 of 80) in the study population compared with 1.6% (21 of 1300) in the general population (P<.0001). For surgeons with 15 years or more of practice, the UAT rate was 24% (8 of 33) compared with 2% (1 of 47) for surgeons with less than 15 years of practice (P=.0030). The prevalence of UAT in adult reconstruction surgeons trended toward significance at 40% (2 of 5) compared with 9% (7 of 75) in the other subspecialties (P=.095). Orthopedic surgeons have an increased risk for developing UAT compared with the general population. The risk of UAT is significantly correlated with advancing years in clinical practice and may be associated with the number of arthroplasty cases performed. [Orthopedics. 2019; 42(5):e415-e422.].

The Effect Of Cold-water Immersion On Joint Power During Drop-landings

Exposure to cold environments results in pronounced alterations in many physiological systems. Military exercises, recreational situations, and popular winter sports could introduce large changes in tissue temperatures of the lower body. To date, the effect of cold exposure on joint mechanics during high impact activities (e.g. drop-landings) remains unknown. It is unclear whether cold exposure could reduce joints’ ability to absorb landing impact, which may increase risks of landing related injuries. PURPOSE: To determine the effect of cold-water immersion on lower-extremity joint power during drop-landings. METHODS: On four separate occasions, 11 female recreational athletes (22±2 yr, 65±7 kg, 1.67±0.06 m) performed drop-landings (single-leg and double-leg landings) from a 0.6-m height following 30-minute immersion in thermoneutral water (CON) (34 °C) to the hip-joint level and in cold-water (20 °C) to the ankle- (LOW), knee- (MED), and hip- (HIGH) joint levels. 3D motion capture was conducted. Lower-extremity joint power was calculated. One way repeated measures ANOVA was used to determine differences among the four conditions. RESULTS: No significant differences in peak power absorption among all testing conditions for either the single-leg landing (p>0.05) or double-leg landing (p>0.05). For single-leg landing, the mean±SD of the power absorption (W/kg) during water-immersions (CON, LOW, MED, and HIGH) were 22.1±3.4, 21.9±2.9, 22.0±3.1, 22.8±3.1, for the ankle, respectively, and 34.7±7.1, 34.4±6.3, 33.3±6.2, 34.4±7.5, for the knee, respectively, and 39.1±8.9, 39.9±11.3, 38.4±5.1, 39.5±8.3, for the hip, respectively. For double-leg landing, the power absorption during water-immersions (CON, LOW, MED, and HIGH) were 18.7±2.9, 19.2±2.8, 18.8±1.9, 18.6±2.8, for the ankle, respectively, and 32.6±6.0, 32.5±5.6, 31.5±4.0, 33.3±7.4, for the knee, respectively, and 33.3±14.1, 31.9±16.6, 29.9±12.8, 31.8±16.0, for the hip, respectively. CONCLUSION: For recreational athletes, drop-landing engages sub-maximal eccentric effort at leg’s muscle-tendon units to absorb impact. Although cold-water lowers tissue temperature, the ability of lower-extremity joints to absorb landing impact remains intact. Thus, the risk of landing related injuries may not be elevated due to cold exposure.

Development and Validation of a Wearable Plantar Force Measurement Device

High-impact physical activity has a positive influence on bone health in humans. High-impact activity generates significant ground reaction forces (GRFs) between the plantar surface of the foot and the ground surface. However, the methods of assessment of plantar GRF are limited outside of a laboratory setting. We present a wearable device featuring force sensor resistors placed on the plantar surface of the foot which may present a feasible alternative to current laboratory technology. This paper presents the design, development, and validation of such a wearable system for the assessment of plantar GRF during various forms of physical activity. GRF estimates from the wearable device were moderately correlated with the gold-standard technology during physical activity, yet estimates during walking were highly variable. Future work should be directed toward individual anatomical site analysis to increase the accuracy of force estimates in a wider range of dynamic activities while also optimizing wearability of the system.

Feasibility of Ski Mountaineering for Patients Following a Total Knee Arthroplasty: A Descriptive Field Study.

Background: Total knee arthroplasty (TKA) is socially relevant due to its high prevalence, high incidence and the affected population. A subpopulation of TKA patients exists that strives to be active and also return to sports after total joint replacement. In this context, a further group of TKA patients is interested in high-impact physical activities and want to proceed with such activities even after surgery. Focusing on winter sports, there is still a lack of evidence on whether ski mountaineering is feasible for this subgroup of patients. Therefore, this feasibility study examines the effects of moderate ski mountaineering on strength, balance, functional abilities and mental health in persons following a TKA. Methods: Eight patients (six males, two females; median age, 63 ± Interquartile range 9 years) with TKA were included in this study. The volunteers, who were pre-selected for a 7-day holiday in Sankt Johann (Tyrol, Austria), participated in five guided ski mountaineering tours. Statistical analyses of non-parametric longitudinal data were performed using analysis of variance. For gait parameters and the Feeling Scale, one-factor longitudinal models were used. Statistical significance was set at the level of p < 0.05. Results: A significant decrease in the S3-Check MFT stability index (p = 0.04), a significant increase in general well-being (p = 0.05), and a trend towards a decrease in general stress (p = 0.1) were detected, while all other parameters were unaffected. Conclusion: A 7-day recreational ski mountaineering holiday had no negative effects on ski-experienced patients with TKA and seemed to increase well-being. Further studies should focus on larger groups and use controlled designs. Additionally, long-term effects should be evaluated.

Exercise-Induced Purpura in Children.

Exercise-induced purpura, which has also been called "golfer's purpura," is a phenomenon that has been rarely reported in the pediatric literature. This is the first case series in which this benign vasculopathy, which is most often associated with warm weather and high-impact activity, is described. In this series, we describe 5 patients, most of whom had an erythematous purpuric rash above the sock line that extended to the knees and was associated with warm weather and prolonged activity. Exercise-induced purpura may be mistaken for Henoch-Schönlein purpura or as a manifestation of a possible systemic vasculitis. Recognition of this benign condition is vital to avoid an unnecessary workup and a costly evaluation with accompanying anxiety.

Quantification of Urinary Loss in Nulliparous Athletes During 1 Hour of Sports Training.

Urinary incontinence (UI) is a pelvic floor dysfunction that can affect nulliparous female athletes because of the effect of sports activities on pelvic floor muscles. To verify and quantify urine loss in nulliparous athletes during 1 hour of sports training using a modified pad test protocol. Cross-sectional. Secondary, institutional practice. Nulliparous athletes (N = 104). Athletes completed the International Consultation on Incontinence Questionnaire-Short Form (ICIQ-UI-SF) and underwent a maximal resistance test of the abdominal muscles followed by the new modified pad test during 1 hour of training. Presence or absence of UI was the dependent variable; the initial hypothesis was that high-impact activities could lead to the development of UI. Almost 52% of athletes (n = 54) self-reported UI according to the ICIQ-UI-SF score. Of athletes who reported stress or mixed UI (n = 32), only 43.7% (n = 14) had leakage during the training pad test. Interestingly, 24% of athletes (n = 12) who did not report UI had a positive pad test result. In total, 27.9% of athletes (n = 29) presented a positive pad test during the training. Mean urinary loss was 1.57 ± 0.4 g. Athletes did not seem to have a good knowledge of UI symptoms, and the modified pad test could be an alternative to quantify urine loss; however, it is necessary to perform accuracy tests. None of the athletes reported discomfort or decreased performance when performing the pad test. II.

HUMAN TRAMPLING EFFECT ON BENTHIC FAUNA OF SANDY BEACHES WITH DIFFERENT INTENSITIES OF USE IN RIO DE JANEIRO, BRAZIL

About 75% of the world’s shoreline is composed of beach environments. Among them, the sandy beach is a familiar environment and used for tourism and recreation. The organisms that live in these environments, as polychaetes, crustaceans and mollusks, are almost unknown by people because they live buried. Thus, many time people could cause damage to these organisms without their own knowledge. Trampling is one of the human-induced impacts to those organisms, destroying their bodies or even dispelling them. Focused on this behavior, this research aims to simulate trampling on two sandy beaches and to observe a real scenario of recreation on weekends and during the week during summer and winter seasons in the Rio de Janeiro state, Brazil. This study verified the changes occurring mainly in the faunal density of these two beaches with different intensities of use, in the predefined situations. Samples were collected during four months, on the second half of year, using simulated treatments and in another two months simple observation of the behavior of tourists was also performed. The simulated treatments did not cause significant changes in any collection except two. One of them was possibly a sampling artifact, which may be due to a low level of impact. The samples on the winter months also did not show significant changes, but the summer samples showed a large decrease in density of organisms during the weekend compared to during the week, probably related to the high intensity of human activity. As this study aimed to verify changes or impacts in organisms at up to 20 cm of depth, we concluded that only high impact activities could affect drastically the faunal density, as observed during the summer season at weekends on the study.